Sayyiduna Ibn Abbas (may Allah be pleased with them both) narrates that he heard the Messenger of Allah (peace and blessings be upon him) say: 'Allahummarham khulafa'ana' (O Allah, have mercy on our successors). We said: "O Messenger of Allah, who are your successors?" He (peace and blessings be upon him) said: "Those who will come after me, who will narrate my hadiths and my Sunnah and teach them to the people."
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Zayd bin Aslam except Hisham bin Sa'd, and no one from Hisham except Ibn Abi Fudayk; Ahmad bin Isa al-Alawi is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 5846
Hadith Gradingمحدثین:إسناده ضعيف جدًّا، فيه أحمد بن عيسى الهاشمي كذاب
Hadith Takhrij«قال الهيثمي: فيه أحمد بن عيسى بن عبد الله الهاشمي قال الدارقطني كذاب «مجمع الزوائد ومنبع الفوائد، ج 1، ص 126»»